CA2818172C - Structural adhesive compositions - Google Patents

Structural adhesive compositions Download PDF

Info

Publication number
CA2818172C
CA2818172C CA2818172A CA2818172A CA2818172C CA 2818172 C CA2818172 C CA 2818172C CA 2818172 A CA2818172 A CA 2818172A CA 2818172 A CA2818172 A CA 2818172A CA 2818172 C CA2818172 C CA 2818172C
Authority
CA
Canada
Prior art keywords
composition
epoxy
component
anhydride
polyol
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA2818172A
Other languages
English (en)
French (fr)
Other versions
CA2818172A1 (en
Inventor
Umesh C. Desai
Tien-Chieh Chao
Masayuki Nakajima
Kaliappa G. Ragunathan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Industries Ohio Inc
Original Assignee
PPG Industries Ohio Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=45217689&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2818172(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by PPG Industries Ohio Inc filed Critical PPG Industries Ohio Inc
Publication of CA2818172A1 publication Critical patent/CA2818172A1/en
Application granted granted Critical
Publication of CA2818172C publication Critical patent/CA2818172C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/182—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing using pre-adducts of epoxy compounds with curing agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/182—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing using pre-adducts of epoxy compounds with curing agents
    • C08G59/186—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing using pre-adducts of epoxy compounds with curing agents with acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
    • C08G59/22—Di-epoxy compounds
    • C08G59/226—Mixtures of di-epoxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/50—Amines
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/50—Amines
    • C08G59/504—Amines containing an atom other than nitrogen belonging to the amine group, carbon and hydrogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2650/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G2650/28—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type
    • C08G2650/50—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type containing nitrogen, e.g. polyetheramines or Jeffamines(r)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/20—Manufacture essentially without removing material
    • F05B2230/23—Manufacture essentially without removing material by permanently joining parts together
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Epoxy Resins (AREA)
  • Wind Motors (AREA)
CA2818172A 2010-11-19 2011-11-17 Structural adhesive compositions Active CA2818172C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/949,878 2010-11-19
US12/949,878 US20120128499A1 (en) 2010-11-19 2010-11-19 Structural adhesive compositions
PCT/US2011/061265 WO2012068414A2 (en) 2010-11-19 2011-11-17 Structural adhesive compositions

Publications (2)

Publication Number Publication Date
CA2818172A1 CA2818172A1 (en) 2012-05-24
CA2818172C true CA2818172C (en) 2016-06-07

Family

ID=45217689

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2818172A Active CA2818172C (en) 2010-11-19 2011-11-17 Structural adhesive compositions

Country Status (9)

Country Link
US (1) US20120128499A1 (de)
EP (3) EP3663375B1 (de)
KR (1) KR20130096756A (de)
CN (1) CN103270128B (de)
CA (1) CA2818172C (de)
ES (1) ES2792825T3 (de)
MX (1) MX373886B (de)
RU (1) RU2552455C2 (de)
WO (1) WO2012068414A2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8796361B2 (en) 2010-11-19 2014-08-05 Ppg Industries Ohio, Inc. Adhesive compositions containing graphenic carbon particles
US20140150970A1 (en) 2010-11-19 2014-06-05 Ppg Industries Ohio, Inc. Structural adhesive compositions
EP2841521A1 (de) * 2012-04-26 2015-03-04 Dow Global Technologies LLC Epoxidhaftstoffzusammensetzung
ES2914973T3 (es) 2015-03-05 2022-06-20 Henkel Ag & Co Kgaa Adhesivo termoconductor
US11242427B2 (en) 2015-10-20 2022-02-08 Ppg Industries Ohio, Inc. Structural adhesive compositions
KR101859537B1 (ko) * 2015-11-06 2018-05-21 주식회사 케이씨씨 2액형 에폭시 접착제 조성물
US10351661B2 (en) 2015-12-10 2019-07-16 Ppg Industries Ohio, Inc. Method for producing an aminimide
US10377928B2 (en) 2015-12-10 2019-08-13 Ppg Industries Ohio, Inc. Structural adhesive compositions
CN108368378B (zh) * 2015-12-10 2021-10-19 Ppg工业俄亥俄公司 胺化酰亚胺组合物
US10253225B2 (en) * 2016-12-23 2019-04-09 Evonik Degussa Gmbh APCHA as a building block in curing agent formulations for structural adhesives
US11732125B2 (en) 2018-02-09 2023-08-22 Ppg Industries Ohio, Inc. Coating compositions
BR112022003302A2 (pt) * 2019-08-23 2022-06-21 Ppg Ind Ohio Inc Composições de revestimento
EP4017897A1 (de) * 2019-08-23 2022-06-29 PRC-Desoto International, Inc. Beschichtungszusammensetzungen
CN115636922B (zh) * 2021-07-20 2024-11-29 中蓝晨光化工研究设计院有限公司 一种环保型环氧固化剂及其制备方法、应用

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529044A (en) 1968-02-28 1970-09-15 Celanese Corp Production of inorganic fibrous materials
BE793030A (fr) * 1971-12-20 1973-04-16 Goodrich Co B F Procede pour la realisation de matieres plastiques de resine epoxy
BE793212A (fr) * 1971-12-24 1973-06-22 Ciba Geigy Matieres durcissables a base de resines epoxydiques
CH588513A5 (de) * 1973-12-19 1977-06-15 Ciba Geigy Ag
DE2531066A1 (de) * 1974-07-12 1976-01-22 Mitsubishi Petrochemical Co Haertbare harzmassen
DE2522043A1 (de) * 1975-05-17 1976-11-25 Huels Chemische Werke Ag Fluessige ueberzugsmittel
US4314930A (en) 1980-05-07 1982-02-09 Union Carbide Corporation Composition containing a half ester of an organic polyol, an unsaturated monomer, an epoxide, and reinforcing fiber
US4304694A (en) * 1979-12-03 1981-12-08 United Technologies Corporation High damping epoxy resin composite
DE3202300C1 (de) 1982-01-26 1983-07-28 Th. Goldschmidt Ag, 4300 Essen Verfahren zum Flexibilisieren von Epoxidharzen
US4668736A (en) * 1984-07-18 1987-05-26 Minnesota Mining And Manufacturing Company Fast curing epoxy resin compositions
EP0305331A3 (de) * 1987-08-25 1991-05-08 Ciba-Geigy Ag Epoxidflexibilisatoren
US4954572A (en) 1988-11-07 1990-09-04 Exxon Chemical Patents Inc. Dispersant additives prepared from monoepoxy alcohols
US4954196A (en) 1989-08-30 1990-09-04 Hoff Ronald L De Process for curing epoxy resin anhydride blends at moderately elevated temperatures
US4990576A (en) * 1989-10-31 1991-02-05 Texaco Chemical Company Tetramines by amination of polyoxyalkylene glycols
US5426169A (en) * 1993-11-02 1995-06-20 Air Products And Chemicals, Inc. Flexiblized polyepoxide resins incorporating aliphatic diglycidyl ethers
JPH09235354A (ja) * 1996-02-28 1997-09-09 Dainippon Ink & Chem Inc アミン変性エポキシ樹脂の製造方法
GB9614436D0 (en) * 1996-07-10 1996-09-04 Dow Deutschland Inc Flexibilized epoxy resins
US6486256B1 (en) 1998-10-13 2002-11-26 3M Innovative Properties Company Composition of epoxy resin, chain extender and polymeric toughener with separate base catalyst
DE60014337T2 (de) 1999-10-19 2005-10-06 Otsuka Kagaku K.K. Härtungsmittel für epoxydharze und epoxydharzzusammensetzung
JP3489025B2 (ja) 2000-01-14 2004-01-19 大塚化学ホールディングス株式会社 エポキシ樹脂組成物及びそれを用いた電子部品
US20030018095A1 (en) 2001-04-27 2003-01-23 Agarwal Rajat K. Thermosettable compositions useful for producing structural adhesive foams
US20040204551A1 (en) 2003-03-04 2004-10-14 L&L Products, Inc. Epoxy/elastomer adduct, method of forming same and materials and articles formed therewith
US7649060B2 (en) 2005-12-02 2010-01-19 Henkel Corporation Curable compositions
ES2691528T3 (es) 2006-07-31 2018-11-27 Henkel Ag & Co. Kgaa Composiciones adhesivas basadas en resina epoxi curable
US20080029214A1 (en) 2006-08-04 2008-02-07 Zephyros, Inc. Multiple or single stage cure adhesive material and method of use
US8105460B2 (en) 2006-09-08 2012-01-31 Zephyros, Inc. Handling layer and adhesive parts formed therewith
US8236128B2 (en) 2006-10-26 2012-08-07 Zephyros, Inc. Adhesive materials, adhesive parts formed therewith and their uses
US20080103340A1 (en) * 2006-10-27 2008-05-01 Archer-Daniels-Midland Company Applications of biobased glycol compositions
MX2009009502A (es) * 2007-03-15 2009-09-18 Huntsman Spec Chem Corp Alta funcionalidad de los compuestos aminicos y sus usos.
ES2377168T3 (es) 2007-06-12 2012-03-23 Zephyros Inc. Material adhesivo endurecido
KR20100059818A (ko) 2007-07-26 2010-06-04 헨켈 코포레이션 경화성 에폭시 수지계 접착제 조성물
EP2181156A1 (de) 2007-08-17 2010-05-05 Dow Global Technologies Inc. Zweiteilige aufprallbeständige epoxidkleber
CN101932668B (zh) 2007-10-30 2015-03-25 汉高股份及两合公司 抗洗脱的环氧糊状粘合剂
EP2062928A1 (de) 2007-11-21 2009-05-27 Sika Technology AG Schlagzähigkeitsverbesserer für Epoxidharzzusammensetzungen
WO2009084014A2 (en) 2007-12-31 2009-07-09 Amit Dixit An epoxy resin composition
GB0806434D0 (en) 2008-04-09 2008-05-14 Zephyros Inc Improvements in or relating to structural adhesives
ES2662646T3 (es) 2008-06-12 2018-04-09 Henkel IP & Holding GmbH Composiciones adhesivas epóxicas estructurales de dos partes, altamente reforzadas, de nueva generación
BRPI0911723A2 (pt) 2008-07-29 2015-10-06 Dow Global Technologies Llc painel veicular reforçado, método para preparar um painel veicular reforçado, estrutura de carroceria veicular e método para preparar uma estrutura de carroceria veicular
US8796361B2 (en) * 2010-11-19 2014-08-05 Ppg Industries Ohio, Inc. Adhesive compositions containing graphenic carbon particles
US20120129980A1 (en) * 2010-11-19 2012-05-24 Ppg Industries Ohio, Inc. Structural adhesive compositions

Also Published As

Publication number Publication date
WO2012068414A3 (en) 2012-11-22
CA2818172A1 (en) 2012-05-24
EP4202005A1 (de) 2023-06-28
EP2640796B1 (de) 2020-02-26
CN103270128B (zh) 2015-09-16
EP2640796A2 (de) 2013-09-25
CN103270128A (zh) 2013-08-28
WO2012068414A2 (en) 2012-05-24
MX2013005562A (es) 2013-10-30
RU2552455C2 (ru) 2015-06-10
EP3663375B1 (de) 2023-01-18
RU2013127667A (ru) 2014-12-27
ES2792825T3 (es) 2020-11-12
US20120128499A1 (en) 2012-05-24
MX373886B (es) 2020-07-07
HK1188245A1 (en) 2014-04-25
EP3663375A1 (de) 2020-06-10
KR20130096756A (ko) 2013-08-30

Similar Documents

Publication Publication Date Title
CA2818172C (en) Structural adhesive compositions
US12049574B2 (en) Structural adhesive compositions
CA2858186C (en) Structural adhesive compositions
CA2915352C (en) Structural adhesive compositions
HK1188245B (zh) 結構粘合劑組合物
HK1198045A (en) Structural adhesive compositions

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20130515

MPN Maintenance fee for patent paid

Free format text: FEE DESCRIPTION TEXT: MF (PATENT, 13TH ANNIV.) - STANDARD

Year of fee payment: 13

U00 Fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U00-U101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE REQUEST RECEIVED

Effective date: 20241108

U11 Full renewal or maintenance fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT DETERMINED COMPLIANT

Effective date: 20241108

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT PAID IN FULL

Effective date: 20241108

MPN Maintenance fee for patent paid

Free format text: FEE DESCRIPTION TEXT: MF (PATENT, 14TH ANNIV.) - STANDARD

Year of fee payment: 14

U00 Fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U00-U101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE REQUEST RECEIVED

Effective date: 20251107

U11 Full renewal or maintenance fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT PAID IN FULL

Effective date: 20251107